Display device

Abstract

The invention provides a display device. The display device is provided with a display area and a non-display area surrounding the display area. The display device comprises a display panel and a backlight module, the display panel comprises frame glue located in a non-display area; the backlight module is arranged opposite to the display panel and used for providing white light for the display panel; the backlight module comprises a backlight source emitting blue light; the display panel further comprises an optical regulation and control structure located in the non-display area. The optical regulation and control structure is located in the frame glue and is configured to receive white light and output yellow light to the edge area of the display area. The optical regulation and control structure outputs white light emitted by the backlight module as yellow light, outputs the yellow light to the edge of the display area, and mixes the yellow light with blue light leaked from the edge in the visible range of human eyes to form a white light effect, so that the edge blue light sensation can be effectively reduced, and the image quality effect is improved.

Description

Technical Field

[0001] This application relates to the field of display technology, and in particular to a display device. Background Technology

[0002] MiniLED (Light-Emitting Diode) display technology is penetrating from the high-end market to the mass consumer market, and its backlight modules use blue LEDs as the light source. However, due to the high energy of blue light and the existence of edge gaps in the backlight structure, blue light leaks out to the edge of the visible area, causing an uncomfortable visual experience of bluish edges. Summary of the Invention

[0003] The main technical problem addressed by this application is to provide a display device that solves the problem of blue edges appearing visually in the prior art.

[0004] To solve the above-mentioned technical problems, the first technical solution provided in this application is: to provide a display device having a display area and a non-display area surrounding the display area; wherein, it includes: Display panel, including the frame adhesive in the non-display area; A backlight module, positioned opposite the display panel, is used to provide white light to the display panel; the backlight module includes a backlight source that emits blue light; The display panel also includes an optical control structure located in the non-display area; the optical control structure is located within the frame adhesive and is configured to receive white light and output yellow light to the edge area of ​​the display area.

[0005] In some embodiments, the frame adhesive includes a first frame adhesive and a second frame adhesive surrounding the outside of the first frame adhesive, and the optical control structure is located between the first frame adhesive and the second frame adhesive.

[0006] In some embodiments, the surface of the optical control structure away from the backlight module has a microstructure for controlling the directionality of the emitted light.

[0007] In some embodiments, the optical control structure includes an optical control layer configured to receive white light and output yellow light.

[0008] In some embodiments, the optical control layer is a yellow filter layer.

[0009] In some embodiments, the optical control layer includes a cyan filter layer, a magnetron deformation layer, and a light conversion layer that are stacked and contacted in sequence.

[0010] In some embodiments, the display device further includes a reflective structure located between the backlight module and the display panel, and at least partially embedded in the display panel; The reflective structure is located in the non-display area and is configured to reflect white light to the optical control structure.

[0011] In some embodiments, the reflective structure and the optical control layer are disposed opposite each other in the direction perpendicular to the surface of the display panel; the main reflective surface of the reflective structure is inclined relative to the light-emitting surface of the display panel, and the inclination angle is 30 to 60 degrees. And / or, The reflective structure uses barium sulfate.

[0012] In some embodiments, the optical control structure further includes a transparent encapsulation layer disposed on the side of the optical control layer away from the backlight module; the outer surface of the transparent encapsulation layer has a microstructure.

[0013] In some embodiments, the backlight module further includes a wavelength conversion layer configured to convert blue light into white light and provide it to the display panel; The display panel includes a driving substrate and a counter substrate arranged opposite to each other, with a frame adhesive located between the driving substrate and the counter substrate.

[0014] The beneficial effects of this application are as follows: Unlike existing technologies, this application provides a display device having a display area and a non-display area surrounding the display area. The display device includes a display panel and a backlight module. The display panel includes a frame adhesive located in the non-display area. The backlight module is disposed opposite to the display panel and is used to provide white light to the display panel. The backlight module includes a backlight source emitting blue light. The display panel also includes an optical control structure located in the non-display area. The optical control structure is located within the frame adhesive and configured to receive white light and output yellow light to the edge area of ​​the display area. The optical control structure outputs yellow light from the backlight module and outputs the yellow light to the edge of the display area, where it mixes with the blue light leaking from the edge within the visible range of the human eye to form a white light effect. This effectively reduces the blue light perception at the edges and improves image quality. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a display device in the prior art; Figure 2 A schematic diagram of a display device embodiment provided in this application; Figure 3 yes Figure 2 Enlarged structural diagram of point E on the central display panel; Figure 4 This is a three-color mixed Venn diagram provided in the embodiments of this application; Figure 5 This is a partial structural schematic diagram of a display panel embodiment provided in this application; Figure 6 This is a partial structural schematic diagram of another embodiment of the display panel provided in this application; Figure 7 This is a schematic diagram of the structure of an embodiment of the magneto-deformable layer provided in this application; Figure 8 This is a table showing the relationship between the emission wavelength and particle size of CdSe quantum dots provided in the embodiments of this application; Figure 9 yes Figure 7 A schematic diagram of the structural principle of the magneto-controlled deformation layer.

[0017] Explanation of icon numbers: 100. Display device; 101. Display area; 102. Non-display area; 10. Display panel; 1. Frame adhesive; 111. First frame adhesive; 112. Second frame adhesive; 113. Receiving groove; 12. Optical control structure; 120. Optical control layer; 121. Yellow filter layer; 122. Cyan filter layer; 123. Magnetically controlled deformation layer; 1230. Housing; 1231. Transparent silicone rubber; 1232. Magnetic pole pair; 1233. Helical coil; 124. Optical converter 125. Transparent encapsulation layer; 126. Microstructure; 13. Driving substrate; 14. Opposing substrate; 15. Liquid crystal layer; 30. Reflective structure; 31. Main reflective surface; 20. Backlight module; 21. Backlight source; 22. Wavelength conversion layer; 23. Diffuser plate; 24. Reflective layer; 25. Optical film; 26. Middle frame; 27. Back plate; 28. Adhesive; +, Positive power supply; -, Negative power supply; S, Magnetic south pole; N, Magnetic north pole; R, Thermistor. Detailed Implementation

[0018] The embodiments of this application will now be described in detail with reference to the accompanying drawings.

[0019] In the following description, specific details such as particular system architectures, interfaces, and technologies are presented for illustrative purposes rather than for limiting purposes, in order to provide a thorough understanding of this application.

[0020] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0021] The terms "first," "second," and "third" in this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movements between components in a specific orientation (as shown in the figures). If the specific orientation changes, the directional indications also change accordingly. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products, or devices.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of a display device in the prior art.

[0024] In existing technologies, display devices include a display panel and a backlight structure arranged opposite each other. The backlight source of the backlight structure emits blue light, and the quantum dot layer in the backlight structure converts the blue light into white light, which is then supplied to the display panel. However, due to the high energy of blue light and the existence of edge gaps and / or edge quantum dot failure in the backlight structure, blue light leaks to the edge of the visible area, causing a visually uncomfortable experience of bluish edges and glare. Existing technologies mainly attempt to reduce blue light leakage by improving the backlight structure or adding a light-shielding layer, but improving the backlight direction requires precise optical design, which is difficult and costly to implement, and the effect is limited. The industry has yet to develop a solution that actively compensates for edge blue light by utilizing the principle of light mixing, based on the structure of the display panel itself.

[0025] Please see Figures 2 to 5 , Figure 2 A schematic diagram of a display device embodiment provided in this application is shown. Figure 3 yes Figure 2 A magnified structural diagram of point E on the central display panel. Figure 4 This is a three-color mixed Venn diagram provided in the embodiments of this application. Figure 5 This is a partial structural schematic diagram of a display panel embodiment provided in this application.

[0026] Therefore, this application provides a display device 100, which has a display area 101 and a non-display area 102 surrounding the display area 101; wherein, the display device 100 includes a display panel 10 and a backlight module 20; the display panel 10 includes a frame adhesive 11 located in the non-display area 102; the backlight module 20 is disposed opposite to the display panel 10 and is used to provide white light to the display panel 10; the backlight module 20 includes a backlight source 21 that emits blue light; wherein, the display panel 10 also includes an optical control structure 12 located in the non-display area 102; the optical control structure 12 is located within the frame adhesive 11 and is configured to receive white light and output yellow light to the edge region of the display area 101.

[0027] The optical control structure 12 outputs the white light emitted by the backlight module 20 as yellow light, and outputs the yellow light to the edge of the display area 101. The yellow light mixes with the blue light leaking from the edge within the visible range of the human eye to form a white light effect, which can effectively reduce the blue light sensation at the edge and improve the picture quality.

[0028] Display panel 10 is an LCD panel.

[0029] In some embodiments, the backlight module 20 further includes a wavelength conversion layer 22, which is configured to convert blue light into white light and provide it to the display panel 10; the display panel 10 includes a driving substrate 13 and a counter substrate 14 disposed opposite to each other, and the frame adhesive 11 is located between the driving substrate 13 and the counter substrate 14.

[0030] The display panel 10 also includes a liquid crystal layer 15 disposed between the driving substrate 13 and the opposing substrate 14. The liquid crystal layer 15 is located in the display area 101.

[0031] The opposing substrate 14 can be a color filter substrate or a substrate that does not include a color filter layer.

[0032] For example, the wavelength conversion layer 22 is a quantum dot material layer. The wavelength conversion layer 22 can also be other material layers, without much limitation here.

[0033] The backlight module 20 can be a direct-lit backlight module 20 or a side-lit backlight module 20.

[0034] The following explanation uses a direct-lit backlight module 20 as an example.

[0035] For example, the backlight module 20 also includes a diffuser 23, a reflective layer 24, an optical film 25, a mid-frame 26, a backplate 27, and an adhesive 28.

[0036] For example, the diffuser 23, the wavelength conversion layer 22, and the optical film 25 are sequentially stacked on the side of the backlight 21 near the display panel 10. The reflective layer 24 is disposed between the backlight 21 and the back plate 27.

[0037] The backplate 27 serves as the bottom base of the entire backlight module 20, providing mechanical support and rigidity to prevent module deformation. The reflective layer 24 is attached to the upper inner side of the backplate 27, located between the backlight source 21 and the backplate 27, and is used to reflect the downward-emitted light from the backlight source 21 back to the light-emitting direction, improving light utilization efficiency. The diffuser 23 is used to disperse the point light source of the backlight source 21, eliminating lamp shadows and initially achieving uniform surface light source. The mid-frame 26 is arranged around the backlight module 20 and located on the side of the backlight module 20. The optical film 25 includes at least one film layer. The adhesive 28 is used to bond the display panel 10 and the backlight module 20.

[0038] In other embodiments, the backlight module 20 may be other structures, and the backlight module 20 may also include other components (e.g., a support structure disposed between the diffuser plate 23 and the backlight 21, etc.). No further restrictions are imposed here, and the selection is made according to actual needs.

[0039] The frame adhesive 11 is located between the driving substrate 13 and the opposing substrate 14 and is disposed around the outer periphery of the display area 101. It is used to seal and bond the driving substrate 13 and the opposing substrate 14 to maintain the thickness between them and prevent external moisture and oxygen from entering.

[0040] There are no restrictions on the material of frame adhesive 11 here; it can be selected according to actual needs.

[0041] The frame adhesive 11 is arranged in a ring.

[0042] In the direction perpendicular to the display panel 10, the optical control structure 12 penetrates the frame adhesive 11 so that the surface of the optical control structure 12 facing the backlight module 20 can receive white light, and the surface of the optical control structure 12 away from the backlight module 20 can emit yellow light.

[0043] In some embodiments, the frame adhesive 11 includes a first frame adhesive 111 and a second frame adhesive 112 surrounding the outside of the first frame adhesive 111, and the optical control structure 12 is located between the first frame adhesive 111 and the second frame adhesive 112.

[0044] Both the first frame adhesive 111 and the second frame adhesive 112 are annular structures and are arranged around the display area 101. The second frame adhesive 112 surrounds the first frame adhesive 111 and is located on the outer periphery of the first frame adhesive 111. The first frame adhesive 111 and the second frame adhesive 112 are spaced apart, and the spaced area forms an annular receiving groove 113, within which the optical control structure 12 is located.

[0045] For example, the optical control structure 12 is a closed ring structure to better reduce the peripheral blue light sensitivity of the display area 101.

[0046] For example, in the panel direction parallel to the display panel 10, the first frame adhesive 111, the second frame adhesive 112, and the optical control structure 12 all have the same radial width. This ensures the sealing effect of the frame adhesive 11 while ensuring that the yellow light emitted from the optical control structure 12 can mix with the edge blue light to form white light, effectively reducing the edge blue light perception. Secondly, the design with the same radial width simplifies the manufacturing process, making the structure of the receiving groove 113 more regular, which is beneficial for mass production.

[0047] In other embodiments, there may be multiple optical control structures 12. Multiple optical control structures 12 are arranged in a ring-shaped distribution structure with circumferential spacing along the edge of the display panel 10. The yellow light emitted by each optical control structure 12 can cover its interval area, so that the yellow light and the blue light leaking from the edge can be visually mixed to form white light, thereby effectively reducing the edge blue light sensation and significantly improving the display quality.

[0048] In some embodiments, the optical control structure 12 has a microstructure 126 on the side of its surface away from the backlight module 20 for controlling the directionality of the emitted light.

[0049] The optical control structure 12 is located in the non-display area 102. By setting microstructures 126 on the surface of the optical control structure 12, the yellow light emitted by the optical control structure 12 in the non-display area 102 can be mixed with the blue light leaking from the edge of the display area 101 to form white light.

[0050] Microstructures 126 include, but are not limited to: conical protrusions, serrated structures, and inclined sidewall micropillars / grooves.

[0051] For example, the microstructure 126 is a sawtooth structure. The sawtooth structure is triangular in cross-section perpendicular to the surface of the display panel 10, and the light-emitting sidewall of the sawtooth structure is inclined relative to the light-emitting surface of the display panel 10 at an angle of 30 to 60 degrees. In a specific embodiment, the light-emitting sidewall of the sawtooth structure is inclined relative to the light-emitting surface of the display panel 10 at an angle of 45 degrees, which concentrates the yellow light towards the edge of the display area 101, thereby more effectively reducing the blue light sensation at the edges.

[0052] By controlling the directionality of the emitted light through the microstructure 126, the yellow light output by the optical control structure 12 is efficiently and directionally output to the edge area of ​​the display area 101, and fully mixes with the blue light leaked from the backlight module 20 to form a white light effect, effectively eliminating the glare of blue at the edge; it avoids uneven yellow light coverage caused by light scattering, and ensures that the intensity of yellow light and the intensity of leaked blue light are precisely matched, thereby significantly improving the visual comfort of the display edge and reducing eye fatigue. At the same time, no additional optical components or complex structures are required, maintaining the low cost and high reliability of the display device 100.

[0053] In some embodiments, such as Figure 3 As shown, the optical control structure 12 includes an optical control layer 120, which is configured to receive white light and output yellow light.

[0054] The optical control layer 120 is configured to perform optical processing on the incident white light, including optical filtering and / or optical wavelength conversion.

[0055] Optical filtering selectively transmits light within a predetermined wavelength band. The light wavelength is converted to absorb the predetermined wavelength and emit other wavelengths that are different from the predetermined wavelength.

[0056] This application embodiment starts from the structure of the display panel 10 itself and utilizes the principle of light color mixing (see...). Figure 4 The solution involves artificially creating yellow light to mix with spilled blue light, thereby reducing or even eliminating the impact of edge blue light. The solution is simple, practical, and cost-controllable.

[0057] In some specific embodiments, the optical control layer 120 is a yellow filter layer 121 (see...) Figure 5 ).

[0058] The yellow filter layer 121 is configured to absorb the blue light band in white light and transmit the red and green light bands, and mix the transmitted red and green light to form yellow light output.

[0059] The yellow filter layer 121 filters the blue light component in the white light, converting the white light into yellow light and outputting it to the edge of the display area 101. This yellow light mixes with the blue light leaked from the backlight module 20 within the visible range of the human eye to form a white light effect, effectively eliminating the glare of blue edges and significantly improving the uniformity of the display quality and viewing comfort.

[0060] Please see Figure 2 , Figures 6 to 9 , Figure 6 This is a partial structural schematic diagram of another embodiment of the display panel provided in this application. Figure 7 This is a schematic diagram of the structure of an embodiment of the magneto-deformable layer provided in this application. Figure 8 This is a table showing the relationship between the emission wavelength and particle size of CdSe quantum dots provided in the embodiments of this application. Figure 9 yes Figure 7 A schematic diagram of the structural principle of the magneto-controlled deformation layer.

[0061] In some other specific embodiments, the optical control layer 120 includes a cyan filter layer 122, a magnetron deformation layer 123, and a light conversion layer 124 that are stacked and contacted sequentially (see [link to embodiment]). Figure 6 ).

[0062] The cyan filter layer 122 is used to filter red light in incident white light, while allowing green and blue light to pass through.

[0063] The magnetically controlled deformation layer 123 achieves deformation through electromagnetic control.

[0064] For example, the magnetron deformation layer 123 is a light-transmitting micro-electromagnetic capsule layer, which contains a magnetic system and a highly expandable transparent silicone rubber 1231, and can deform through temperature changes.

[0065] like Figure 7 As shown, the micro-electromagnetic capsule layer is composed of a transparent, colorless thin-film shell 1230, which is elastic and stretchable. The shell 1230 is filled with a pair of magnetic poles 1232 and a highly expandable transparent silicone rubber 1231. The magnetic pole pair 1232 includes a magnetic south pole (S) and a magnetic north pole (N), located on opposite sides of the transparent silicone rubber 1231 in a direction perpendicular to the surface of the display panel 10, for generating a magnetic field. The magnetic south pole (S) is located on the side of the transparent silicone rubber 1231 furthest from the backlight module 20.

[0066] A micro-electromagnetic system is integrated inside the transparent silicone rubber 1231 to regulate the deformation, displacement, or response behavior of the capsule under the action of an external magnetic field.

[0067] The miniature electromagnetic system comprises multiple branches connected in parallel, each branch including a helical coil 1233 and a thermistor R connected in series. One end of each branch is connected to the positive terminal (+) of the power supply, and the other end is connected to the negative terminal (-).

[0068] The branch extends along a direction perpendicular to the surface of the display panel 10, and the end of the branch away from the backlight module 20 is connected to the positive terminal of the power supply.

[0069] The light conversion layer 124 contains quantum dot materials or fluorescent materials, which can convert green and blue light into yellow light.

[0070] For example, the light conversion layer 124 contains quantum dot material and performs light conversion using the Stokes shift principle of quantum dots.

[0071] Specifically, such as Figure 8As shown, the light conversion layer 124 includes CdSe quantum dots with a particle size of 5-7 nm. Green and blue light transmitted from the cyan filter layer 122 passes through the magnetron deformation layer 123 and enters the CdSe quantum dots. The excitation process of the quantum dots follows the Stokes shift law, where high-energy light is converted to low-energy light (energy order: violet > blue > cyan > green > yellow > orange > red), and green and blue light are converted into yellow light.

[0072] When white light passes through the cyan filter layer 122, the red light is absorbed, generating heat. The thermistor R senses the temperature change, causing its resistance to decrease and its current to increase. The integral form of Ampere's circuital law is: ∮B·dl=μ0I.

[0073] Where ∮ represents the loop integral over a closed path (also known as the Ampere loop), B is the magnetic induction intensity (magnetic field), dl is the small line element vector along the closed path, μ0 is the permeability of free space, and I is the total current enclosed by the closed path (i.e., the current passing through the area enclosed by the loop).

[0074] An increase in current strengthens the magnetic field according to Ampere's circuital law.

[0075] like Figure 9 As shown, the current direction of the loop coil is from top to bottom. According to the right-hand rule, the upper part (the side away from the backlight module 20) and the lower part (the side closer to the backlight module 20) of the micro electromagnetic system are magnetized into a magnetic south pole (S) and a magnetic north pole (N), respectively. Based on the principle of magnetic repulsion between like poles, the micro electromagnetic capsule layer generates external tension to compress the light conversion layer 124.

[0076] For example, the linear expansion coefficient of transparent silicone rubber 1231 is 30 × 10⁻⁶. -5 / ℃, For example, the light conversion layer 124 includes CdSe quantum dots with a particle size of 5-7 nm. Assuming the initial height of the transparent silicone rubber 1231 is h, and the transparent silicone rubber 1231 linearly expands when the temperature increases by 35°C, the height of the transparent silicone rubber 1231 after expansion becomes (30 × 10⁻⁶). -5 (60°C × 35°C + 1) × h = 1.0105h, the height increases by approximately 1.05% after expansion, providing auxiliary expansion force. The compressive force F received by the quantum dot layer is: F = F1 + F2, where F1 is the magnetic pole repulsion force and F2 is the expansion force of the transparent silicone rubber 1231. After compression, the density of the quantum dot layer increases, the conversion efficiency improves, and the purity of the yellow light is improved relative to the initial state (before the deformation of the magnetron-controlled deformation layer 123). Moreover, this change process is linear and slow, the transformation is smoother, and it is difficult for the human eye to perceive. After power is turned off, the micro electromagnetic system returns to its initial state.

[0077] The configuration of the magnetic south pole S and magnetic north pole N in the magnetic pole pair 1232 of the magnetized deformation layer 123 and the direction of the current in the branch are adjustable, but it is necessary to ensure that the polarity of the magnetization on the side near the backlight module 20 in the micro electromagnetic system is consistent with the polarity of the magnetic pole on the side near the backlight module 20 in the magnetic pole pair 1232, so as to ensure that the quantum dot layer can be squeezed when white light passes through the cyan filter layer 122.

[0078] The optical control layer 120 filters red light from white light through the cyan filter layer 122, allowing green and blue light to enter the magnetron deformation layer 123. The magnetron deformation layer 123 deforms in response to temperature changes, compressing the light conversion layer 124 to improve the yellow light conversion efficiency. The light conversion layer 124 converts green and blue light into yellow light. This yellow light mixes with blue light leaking from the edge of the display area 101 to form the white light perceived by the human eye, effectively reducing the blue light perception at the edges and improving display quality. Compared to embodiments where the optical control layer 120 only includes a yellow filter layer 121, this embodiment outputs yellow light with increased purity and enhanced softness, more effectively improving the problem of blue light leakage at the edges.

[0079] In some embodiments, the display device 100 further includes a reflective structure 30 located between the backlight module 20 and the display panel 10, and at least partially embedded in the display panel 10; the reflective structure 30 is located in the non-display area 102 and is configured to reflect white light to the optical control structure 12.

[0080] The reflection structure 30 directionally reflects white light to the optical control structure 12, significantly improving the white light reception efficiency of the optical control structure 12, so that the white light can be more fully converted into yellow light.

[0081] The driving substrate 13 includes a glass substrate, and the reflective structure 30 is at least partially embedded in the glass substrate.

[0082] For example, the reflective structure 30 is completely embedded in the glass substrate of the display panel 10 to facilitate a thin and simple display device 100.

[0083] In other embodiments, the reflective structure 30 may be disposed between the backlight module 20 and the display panel 10, but is not embedded in the display panel 10.

[0084] In some embodiments, the reflective structure 30 is disposed opposite to the optical control layer 120 in a direction perpendicular to the surface of the display panel 10; the main reflective surface 31 of the reflective structure 30 is inclined relative to the light-emitting surface of the display panel 10, and the inclination angle is 30 to 60 degrees; and / or, the reflective structure 30 is made of barium sulfate.

[0085] The reflective structure 30 can be a whole structure with reflective properties, or at least one surface of the reflective structure 30 can be reflective, i.e., a reflective surface. That is, the reflective structure 30 includes at least one reflective surface.

[0086] Among multiple reflecting surfaces, the surface that plays the main reflecting role is the main reflecting surface 31.

[0087] The main reflective surface 31 is a high reflective surface, used to efficiently reflect incident white light to the optical control structure 12. The main reflective surface 31 is located close to the optical control structure 12 and close to the display area 101.

[0088] In the direction parallel to the surface of the display panel 10, the reflective structure 30 and the optical control layer 120 are at least partially overlapped, so that the reflective structure 30 can reflect white light to the optical control layer 120.

[0089] For example, in a direction perpendicular to the surface of the display panel 10, the reflective structure 30 and the optical control layer 120 are positioned opposite each other to improve the reflection efficiency of white light to a greater extent.

[0090] The tilt angle of the main reflective surface 31 of the reflective structure 30, within the range of 30 to 60 degrees, optimizes the light reflection path and ensures efficient conversion of white light into yellow light. For example, the tilt angle can be set to 45 degrees to achieve optimal reflection efficiency.

[0091] The main reflecting surface 31 is either a plane or a curved surface.

[0092] For example, the reflective structure 30 is generally in the shape of a closed ring, extending along the circumferential direction. The longitudinal section of the reflective structure 30 is triangular or triangular-like, and the longitudinal section refers to the section taken along the plane formed by the radial and axial directions of the ring.

[0093] For example, the reflective structure 30 uses barium sulfate as a highly reflective filler material to improve reflectivity, and the entire reflective structure 30 has a reflective function.

[0094] In other embodiments, the reflective structure 30 may also use other highly reflective materials.

[0095] For example, by precisely controlling the tilt angle and / or material selection of the reflective structure 30, the conversion efficiency of the optical modulation layer 120 for white light is significantly improved, making the output intensity of yellow light more matched with the intensity of blue light leaking from the edge.

[0096] In one specific embodiment, the main reflective surface 31 of the reflective structure 30 is tilted at an angle of 45 degrees, and the entire reflective structure 30 is made of barium sulfate. The 45-degree tilt angle ensures the directionality of light reflection and reduces light scattering, while the barium sulfate material further enhances the reflectivity, thereby allowing the converted yellow light to mix more effectively with the leaked blue light to form the white light effect perceived by the human eye, reducing the visual perception of bluish edges, improving display quality, and enhancing viewing comfort.

[0097] In some embodiments, the optical control structure 12 further includes a transparent encapsulation layer 125 disposed on the side of the optical control layer 120 away from the backlight module 20; the outer surface of the transparent encapsulation layer 125 has a microstructure 126.

[0098] The transparent encapsulation layer 125 is used to protect the optical control layer 120 inside the optical control structure 12. The microstructure 126 on its outer surface is used to concentrate the converted yellow light towards the edge of the display area 101, reduce light scattering and improve the directionality of the light path.

[0099] The transparent encapsulation layer 125 can be made of transparent UV adhesive (ultraviolet curing adhesive) material, and microstructure 126 is formed by molding through a top mold. The angle and shape of the microstructure 126 can be adjusted according to the actual light path to match the position of blue light leakage at the edge.

[0100] The specific structure of microstructure 126 is described above and will not be repeated here.

[0101] The display device 100 may also include one or more of the following components (not shown in the figures): memory, power supply component, processing component, multimedia component, audio component, input / output (I / O) interface, sensor component, and communication component. The specific structure and function of these components are the same as or similar to those in related technologies; please refer to the related technologies for details, which will not be repeated here. The display device 100 may be a computer, digital broadcasting terminal, messaging device, game console, medical device, fitness equipment, personal digital assistant, etc. This application does not limit its scope; the device may be selected according to actual needs.

[0102] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0103] The above are merely embodiments of this application and do not limit the scope of patent protection of this application. Any equivalent structural or procedural changes made using the content of this application’s specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the scope of patent protection of this application.

Claims

1. A display device having a display area and a non-display area surrounding the display area; characterized in that, The display device comprises: a display panel comprising a frame glue located at the non-display area; a backlight module arranged opposite to the display panel, configured to provide white light to the display panel; the backlight module comprises a blue light emitting backlight source; wherein the display panel further comprises an optical regulation structure located at the non-display area; the optical regulation structure is located in the frame glue and is configured to receive the white light and output yellow light to the edge area of the display area.

2. The display device according to claim 1, wherein The frame glue comprises a first frame glue and a second frame glue arranged outside the first frame glue, and the optical regulation structure is located between the first frame glue and the second frame glue.

3. The display device according to claim 1, wherein The side surface of the optical regulation structure away from the backlight module has a microstructure for regulating the directionality of the outgoing light.

4. The display device according to claim 3, wherein The optical regulation structure comprises an optical regulation layer configured to receive the white light and output yellow light.

5. The display device according to claim 4, wherein The optical regulation layer is a yellow filter layer.

6. The display device according to claim 4, wherein The optical regulation layer comprises a cyan filter layer, a magnetic control deformation layer and a light conversion layer which are sequentially stacked and in contact.

7. The display device according to claim 4, wherein The display device further comprises a reflection structure located between the backlight module and the display panel and at least partially embedded in the display panel; The reflection structure is located in the non-display area and is configured to reflect the white light to the optical regulation structure.

8. The display device according to claim 7, wherein In the direction perpendicular to the panel surface of the display panel, the reflection structure is arranged opposite to the optical regulation layer; the main reflection surface of the reflection structure is arranged obliquely relative to the light emitting surface of the display panel, and the oblique angle is 30-60 degrees; and / or, The reflection structure adopts barium sulfate.

9. The display device according to claim 4, wherein The optical regulation structure further comprises a transparent encapsulation layer arranged on the side of the optical regulation layer away from the backlight module; the outer surface of the transparent encapsulation layer has a microstructure.

10. The display device according to claim 1, wherein The backlight module further comprises a wavelength conversion layer configured to convert the blue light into the white light and provide the white light to the display panel; The display panel comprises a driving substrate and a counter substrate arranged opposite to each other, and the frame glue is located between the driving substrate and the counter substrate.

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